| Name | CVE-2016-8689 |
| Description | The read_Header function in archive_read_support_format_7zip.c in libarchive 3.2.1 allows remote attackers to cause a denial of service (out-of-bounds read) via multiple EmptyStream attributes in a header in a 7zip archive. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-1600-1, DLA-661-1 |
| NVD severity | medium |
| Debian Bugs | 840934 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libarchive (PTS) | jessie | 3.1.2-11+deb8u3 | vulnerable |
| jessie (security) | 3.1.2-11+deb8u8 | fixed | |
| stretch | 3.2.2-2+deb9u1 | fixed | |
| stretch (security) | 3.2.2-2+deb9u2 | fixed | |
| buster, buster (security) | 3.3.3-4+deb10u1 | fixed | |
| bullseye, sid | 3.4.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libarchive | source | (unstable) | 3.2.1-5 | 840934 | ||
| libarchive | source | jessie | 3.1.2-11+deb8u4 | DLA-1600-1 | ||
| libarchive | source | wheezy | 3.0.4-3+wheezy5 | DLA-661-1 |
https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-read_header-archive_read_support_format_7zip-c/
https://github.com/libarchive/libarchive/issues/761
Fixed by: https://github.com/libarchive/libarchive/commit/7f17c791dcfd8c0416e2cd2485b19410e47ef126